1/*
2 * Copyright (C) 2004, 2005, 2006, 2007 Nikolas Zimmermann <zimmermann@kde.org>
3 * Copyright (C) 2004, 2005 Rob Buis <buis@kde.org>
4 * Copyright (C) 2005 Eric Seidel <eric@webkit.org>
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14 * Library General Public License for more details.
15 *
16 * You should have received a copy of the GNU Library General Public License
17 * along with this library; see the file COPYING.LIB.  If not, write to
18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
19 * Boston, MA 02110-1301, USA.
20 */
21
22#ifndef FEBlend_h
23#define FEBlend_h
24
25#if ENABLE(FILTERS)
26#include "FilterEffect.h"
27
28#include "Filter.h"
29
30namespace WebCore {
31
32enum BlendModeType {
33    FEBLEND_MODE_UNKNOWN = 0,
34    FEBLEND_MODE_NORMAL = 1,
35    FEBLEND_MODE_MULTIPLY = 2,
36    FEBLEND_MODE_SCREEN = 3,
37    FEBLEND_MODE_DARKEN = 4,
38    FEBLEND_MODE_LIGHTEN = 5
39};
40
41class FEBlend : public FilterEffect {
42public:
43    static PassRefPtr<FEBlend> create(Filter*, BlendModeType);
44
45    BlendModeType blendMode() const;
46    bool setBlendMode(BlendModeType);
47
48    void platformApplyGeneric(unsigned char* srcPixelArrayA, unsigned char* srcPixelArrayB, unsigned char* dstPixelArray,
49                           unsigned colorArrayLength);
50    void platformApplyNEON(unsigned char* srcPixelArrayA, unsigned char* srcPixelArrayB, unsigned char* dstPixelArray,
51                           unsigned colorArrayLength);
52    virtual void platformApplySoftware();
53    virtual void dump();
54
55    virtual TextStream& externalRepresentation(TextStream&, int indention) const;
56
57private:
58    FEBlend(Filter*, BlendModeType);
59
60    BlendModeType m_mode;
61};
62
63} // namespace WebCore
64
65#endif // ENABLE(FILTERS)
66
67#endif // FEBlend_h
68